<template>
  <transition name="drop">
    <div class="top-tip" v-show="showFlag" @click.stop="hide">
      <slot></slot>
    </div>
  </transition>
</template>

<script>
  export default {
    props: {
      delay: {
        type: Number,
        default: 2000
      }
    },
    data () {
      return {
        showFlag: false
      }
    },
    methods: {
      show () {
        this.showFlag = true
        clearTimeout(this.timer)
        this.timer = setTimeout(() => {
          this.hide()
        }, this.delay)
      },
      hide () {
        this.showFlag = false
      }
    }
  }
</script>

<style scoped lang="scss">
@import "../../common/scss/variable.scss";

.top-tip {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 500;
  background: $color-dialog-background;
  &.drop-enter-active, &.drop-leave-active {
    transition: all 0.3s;
  }
  &.drop-enter, &.drop-leave-to {
    transform: translate3d(0, -100%, 0);
  }
}
</style>
